Hamish Stewart (Hamish.Sophie@wanadoo.fr)
Tue, 19 Jan 1999 23:24:59 +0000
>Subject: Re: Gum questions - Details
>Sent: 15/1/19 18:33
>Received: 19/1/99 21:53
>From: FotoDave@aol.com
>Reply-To: Alt-photo-process, alt-photo-process-l@skyway.usask.ca
>To: Alt-photo-process-l@usask.ca
>
>>> I know most of this stuff doesn't have easy
>answers, but still.. the questions are killing me. I'll go easy and ask
>only a few of the many questions I have right now.
>
>Hi Adam, I will also try to go easy and try to answer very briefly because I
>get complains when I get over-enthusiastic and talks about details.... :)
>
>> First, can somebody recommend a paper that allows fine detail to be
>> retained?
>
>I have used Canford Snow White, Mi-Teintes and Arches hot pressed watercolor
>paper, all giving me very fine details.
To add to this try Saunders Waterford - both the cold and hot pressed.
The hot pressed is wonderful to resolve fine detail
>
SNIP
>
>> I've heard, many
>> times, that gum can do detail like platinum - now I ask, how? Multiple
>> coats are the target.
Gum can do fine detail - the trick is the right negative - not too much
density - someone once said a scale that would print well on a grade 2
paper.. But I could be corrected on this.. As dave has said, gum has a
short scale, but you build the density and contrast with the exposures -
more than the negative. Well this works for me..
>
>The secret is to do nice separation through multiple printing. One-coat is
>certainly possible but more difficult. The reason is that gum is very short
>scale, so exposure and negative density matching must be *exactly exact* and
>assuming there is no change between your coating of test strip and your final
>print, etc. etc. Otherwise you will lost some details.
I would normally do between 6-8 exposures of my gum prints. Some say this
is excessive - but I like the results - if you like visit my pages at
http://perso.wanadoo.fr/hamish/terre.html to see some examples. Multiple
printing is the key with gum, but you have to be patient. I start
noticing a real build up of tone, texture and contrast after the 4th or
5th coat. Many people don't do this many..
Cheers
Hamish
>
---------------------------------------------------------------------------
-
Hamish Stewart
Gum Bichromate Photography
http://perso.wanadoo.fr/hamish/gumphoto.html
email gum_photo@wanadoo.fr
---------------------------------------------------------------------------
-
This archive was generated by hypermail 2.0b3 on Sat Nov 06 1999 - 10:06:43